Five elementary school children are spending their summer break camping at a remote mountain village. While on a hunt for their missing rabbit, Pyon-kichi, they find an injured dog in a field with crop circles. After nursing the dog back to health, they are shocked when he suddenly speaks and introduces himself as Pochi Rickman—an alien researcher who has been on Earth researching its plant life. As thanks for saving his life, Pochi offers to take the children to the moon on a sightseeing trip. When they arrive, the group quickly discovers that the moon hides a vast alien metropolis which they begin to gleefully explore. Unfortunately, after hearing that Pochi was severely injured on his mission, the government of the moon issues a travel sanction on Earth, preventing the children from returning home. Left with no other choice, the group journeys around the galaxy in search of a way to safely return to Earth. Amidst their adventure, they are pursued by aliens affiliated with "The Space Show," the universe's most-watched production shrouded in mystery.

Himawari Hinata recently transfered to Shinobi Gakuen to train to become the best kunoichi she can be. She wanted to be a ninja ever since she was saved by one when she was little. On her first day, she meets Hayato Madenokoji (a new transfer teacher) who saves her life. Hayato does not possess any ninja skills or traits, he is teaching the ninjas about normal society to pay off his debt. However, Himawari notices that Hayato bares the same mark on his neck as the ninja who saved her when she was young.

Ryo Saeba is the top "City Hunter" around and he takes on cases with his partner Kaori. A model named Ai Shindo has been attacked and hires him to be her bodyguard. Shinji Mikuni, the president of an IT company that has hired Ai for its ad campaign, turns out to be an old friend of Kaori, and they become involved. Meanwhile, mercenaries are gathering in Shinjuku... and a major arms dealer arrives in Japan with a new weapon, but with Mikuni in the picture, Ryo and Kaori are growing apart...

(Source: Official Website)

After Makoto Mizuhara agrees to testify against the boisterous student council president Katsuhiko Jinnai for bribing school clubs in the recent student council elections, Jinnai chases him down in an attempt to silence his self-proclaimed rival. Suddenly, during the chase, time stops for everyone—except Makoto. Perplexed, he wanders around the campus until he notices a light coming from the school's closed-off basement, where an ancient relic had just been uncovered. Makoto is walking toward the artifact surrounded by strings of light, when out of it comes an otherworldly woman who claims she has been waiting for ten thousand years to see him. Weakened by the passage of time, she uses her remaining power to transport a confused Makoto to another world, which she refers to as El-Hazard. However, others who are still at school are also caught in the spell, namely: Jinnai; Masamichi Fujisawa, the alcoholic teacher; and Nanami Jinnai, the headstrong sister of president Jinnai. The fantastical and magnificent world of El-Hazard awaits these four individuals where they will become entangled in the story of its inhabitants and embark on an adventure filled with laughter, danger, and even romance. [Written by MAL Rewrite]